彩色电视机的光、色参数测量均在暗室内进行,暗室亮度应在0.2cd/m~2以下,避免杂散光对测量结果的影响。彩色电视机光、色性能参数主要有:最大亮度、大面积图象对比度、白场不均匀性、色温、白平衡等。下面分别加以说明。 1、最大亮度(GB3786-83.4.17条) 定义:在屏幕上相当于黑色电平图象亮度一定时,以及显象管屏幕A区行结构可分辨的情况下,相应白电平的最大亮度。①测量方法: 在标准输入电平时,电视机输入端加上三 Color TV, light and color parameters are measured in a dark room, darkroom brightness should be 0.2cd / m ~ 2 or less, to avoid stray light on the measurement results. Color TV color, color performance parameters are: maximum brightness, large area image contrast, white non-uniformity, color temperature, white balance and so on. Explained below separately. 1, the maximum brightness (GB3786-83.4.17) Definition: On the screen is equivalent to the black level of the image brightness is certain, and the kinescope screen A area line structure can be resolved under the circumstances, the corresponding maximum brightness white level . ① measurement method: the standard input level, the TV input plus three